@font-face{
    font-family: 'Avenir';
    src: url('../css/font/avenir/Avenir-Medium.ttf');
    unicode-range: U+0041-005A, U+0061-007A, U+0030-0039;
}

html, body{
    overflow-x: hidden;
}

body{
    position: relative;
    margin: 0;
    padding: 0;
    font-family: 'Avenir','NanumSquare', 'sans-serif';
    width: 100%;
    min-width: 320px;

}

li, ul, ol{
    list-style: none;
}

p, span, h1, h2, h3, h4, h5, h6, li, ul, ol, dl, dd, dt{
    padding: 0;
    margin: 0;
}

a{
    text-decoration: none;
    color: black;
}

img{
    border: none;
}

.flt_l{
    float: left;
}

.flt_r{
    float: right;
}

.clearfix::after{
    content: "";
    display: block;
    clear: both;
}

.header-font{
    font-size: 4.8rem;
    color: black;
    font-weight: 800;
}

.header-font2{
    font-size: 2.125rem;
    color: black;
    font-weight: 800;
}

.large-font{
    font-size: 2.25rem;
    color: black;
    font-weight: 700;
}

.medium-font{
    font-size: 1.5rem;
    color: black;
    font-weight: 700;
}
.small-font{
    font-size: 1.125rem;
    color: black;
    font-weight: 400;
}
.xs-small-font{
    font-size: 1rem;
    color: black;
    font-weight: 400;
}

.header-font-w{
    font-size: 6.25rem;
    color: white;
    font-weight: 800p
}

.header-font2-w{
    font-size: 3.125rem;
    color: white;
    font-weight: 800;
}

.large-font-w{
    font-size: 2.25rem;
    color: white;
    font-weight: 700;
}

.medium-font-w{
    font-size: 1.5rem;
    color: white;
    font-weight: 700;
}
.small-font-w{
    font-size: 1.125rem;
    color: white;
    font-weight: 400;
}
.xs-small-font-w{
    font-size: 1rem;
    color: white;
    font-weight: 400;
}

.btn_og{
    cursor: pointer;
    display: block;
    background-color: #307df8;
    color: white;
    width: 160px;
    height: 40px;
    margin: 0;
    line-height: 40px;
    text-align: center;
}

.btn_og a{
    color:white;
}

#main_nav .btn_og{
    display: inline-block;
} 

#scroll_top_btn a{
    width: 50px;
    height: 20px;
    position:fixed;
    right: 2%;
    bottom: 50px;
    z-index: 998;
}

#scroll_top_btn img{
    width: 100%;
}

#scroll_top_btn img:hover{
    content: url('../image/up8.png');
}
/* nav */

#symbol{
    width: 160px;
    height: 40px;
    margin-top: 16px;
    float: left;
}

#main_nav{
    width: 100%;
    height: 65px;
    font-size: 1rem;
    background-color: white;
    opacity: .9;
    border-bottom: 1px solid lightgray;
    position: fixed;
    z-index: 9999;
}

#main_nav:hover{
    opacity: 1;
}

.main_nav_wrap{
    width: 70%;
    margin: 0 auto;
}

#main_nav ul li{
    float:left;
    margin-left: 100px;
}

#navigation{
    float: right;
    line-height: 40px;
    margin-top: 12px;
}

#navigation_m_btn{
    display: hidden;
    float: right;
    margin-top: 19px;
    cursor: pointer;
}

#navigation_m_btn img{
    width: 26px;
    height: 26px;
}

header{
    padding-top: 66px;
    width: 100%;
    height: calc(100% - 81px);
    position: relative;
}

.fixed{
    position: fixed;
}

#nav_m{
    /* position: absolute; */
    display: none;
    position: fixed;
    z-index: 999;
    width: 100%;
    height: 100%;
    background-color: #307df8;
    top: 66px;
}

#nav_m_wrap{
    margin: 0 auto;
    margin-top: 15%;
    width: 70%;
    height: 85%;
}

#nav_m_wrap li{
    border-bottom: 1px solid white;
    margin-bottom: 50px;
}

#nav_m a{
    color: white;
    font-size: 2rem;
}



/*       partners       */

#partners{
    width: 100%;
    /* height: calc(100% - 80px); */
    height: 500px;
}

#partners h3{
    padding-top: 8%;
    padding-bottom: 70px;
}

#partners_wrap {
    position: relative;
    width: 80%;
    height: 100%;
    margin: 0 auto;
}


#partners img{
    position: relative;
    width: 100%;
    height: 60%;
    margin-top:18px;
}


#partners li{
    text-align: center;
    position: relative;
    float: left;
    border: 1px solid silver;
    margin: 1rem;
    width: calc(100% / 4 - 2.5rem);
    height: 90px;
}

#partners .p_list p{
    position: absolute;
    top: 0px;
    width: 100%;
    height:100%;
    line-height: 90px;
    background-color: #307df8;
    opacity: .93;
    color: white;
    text-align: center;
}

#partners .partners-list{
    width: 100%;
    height: 100px;
}

#partners .partners-list .card{
    position: relative;
    width: 100%;
    height: 120px;
    text-align: center;
    margin: 10px;
    border: 1px solid silver;
}

#partners .partners-list .card p{
    position: absolute;
    top: 0px;
    width: 100%;
    height: 100%;
    background-color: #307df8;
    opacity: .9;
    color: white;
    line-height: 120px;
}

#partners .partners-list img{
    width: 100%;
    height: 100%;
    text-align: center;
    margin: 0;
    
}


/*       footer        */

footer{
    position: relative;
    background-color: #000;
    width: 100%;
    height: 350px;
    text-align: center;
    font-size: 1rem;
    color: white;
}

footer img{
    margin-top: 2.8rem;
    width: 55px;
    height: 55px;
}

footer .company_name{
    margin-top: 1.5625rem; 
    margin-bottom: 2.1875rem;
}

footer .ph{
    margin-top: 1rem;
}

.copyright{
    position: absolute;
    background-color: #307df8;
    height: 50px;
    width: 100%;
    height: 15%;
    line-height: 50px;
    top: 85%;
}